Re: Copper fouling in .204 ruger
I assume your running a factory barrel?
Some factory barrels will smooth up in 20 rounds, some will take 100 rounds, some never will. Its a crap shoot with a factory barrel.
IF your shooting a match barrel, I would say something is wrong but I would expect this is a factory pipe if your using JBs on it. I hope.
In a smooth bore, copper fouling should really not be a problem no matter what your velocity is, certainly not at 3750 fps. Powder fouling in a small bore is generally more critical but I would say you have a pretty rough barrel and its nearly impossible to predict when it will clean up.
YOu may want to send it off and try getting it hand lapped to see if it improves any.
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